Shoe-sole-sewing machine



Oct. 1 1

G. c. ROGER SHOE SOLE SEWING MACHINE Filed Apiil 25, 1925 s Sheets-Sheet 1 J M d m a z! 5 37 I W: F k e 1 C f Z 1 k a w w o nu a n o U k J 1 0 0d .9 6 Z .L|.\\ n 3 o fl a a ,d y n 1,645,872 G. c. ROGER SHOE SOLE SEWING-MACHINE Filed Aprii 23, 1923 5 Sheets-Sheet 2 Oct. 18, 1927. 5,87

G. C. ROGER SHOE SOLE SEWING MACHINE Filed April 25, 1925 5 Sheets-Sheet 5 i L if; il iii/c I I F Q F WU- j r Oct. 18, 1927.

G. C. ROGER SHOE SOLE SEWING MACHINE Filed April 25, 1923 5 Sheets-Sheet 4 1,645,872 G. c. ROGER SHOE SOLE SEWING MACHINE Get. 18, 1927.

Filed April 25, 1923 5 Sheets-Sheet 5 heme a 18,1927.

UNITED STATES.

puma enema man, or nonniuox, Ira-anon:

snoE-soLa-snwmo nonm.

The soles of sandals, slippers, and the like are at present, sewn or stitched by hand or by neans .of machines forming the straight chaihstitch which loosens or unrevels when thethi ead is drawn upon from the suitable side.

In-order to revent this disadvantage, I have devised t e sewing-machine forming the subject-matter of the invention, for ob- ,taining a stitch, which is stopped or locked against unravelling whenever the thread .is drawn in any direction, said stitch bein objtained without it being necessary to su mit the shoe sole tolany previous operation.

The. essential feature of the machine, which comprises a needle and a shuttle, consists in that the whole of these two parts is so arranged as to perform, after every stitch,- a rotation of180, in order to present themthe position they previously occupied so as to cross thestitches. This rotation can beefl'ected either always in the same direction or alternately in one direction and then in the other.

Another featuraconsists in a pusher device which, at the re uired moment, distorts the sole so as to hen the same, in order to allow the needle to enter the sole without entirely passing through the same.

A further feature consists in the feeding device for the sole or work, which allows p mechanically directing tl'te same according to its outline, so. that the needle willlwa s present itself normally with reference to t e work. 1 v

The invention also refers to. the devices for carrying out this machine and particularly to the drive of the needle, of the pusher and of the thread-feeding device by means of a cam provided with three grooves.

The following specification, made with reference to the accompanying drawing given by way of example, will give an vention can be carried out.

Figure 1 shows schematically in an elevation view the whole of the machine.

shuttle and the pusher.

Figure 3 is a front view of Figure 2.

Application med Apr-1128, 199's, Serial a... calms, and in Belgium m 10, 1922.

h the operation of same.

selves in a position which is symmetrical to to cause theneedle to enter the soleandunderstanding of the way in which the in- Figure 2 a detailview, on a larger scale, of'the mechanism including'the needle, the

Figure 4 is a perspective detail view of the gear train for the drive of the mechamsm.

Figures 5 and 6 are 1 views showing parts and the pus er by means of "a slide.

. 8 is a detail view showing the slide in plan. Q

I Figures, 9, 10 and 11 are schematic views 65 show ng the position of the different parts of the machine as shown in Figure 1 during.

Figures 12, 1'3 and 14 are schematic views of a modified form of the machine during the operation of same. v

Fl re 15 shows the cross stitch,.a sort of w ip stitch, which is obtained with themachlne formin the sub'ect matter of this invention; in thisilgure t e drawing in ll 78 linescorresponds to the needle thread, or instance and the drawing 'in dotted lines, the shuttle thread.

' The machine forming the subject-matter of this invention comprises the difierent 01: an lowin parts:

.1. he frame,

' 2. The needle'mechanism which is adapted to remove the same t erefrom';

3. The thread-ceding device for the needle' A 4. The shuttle mechanism as used for looping the needle thread;

5. The pusher mechanism which is adapted to bend or how the sole at the required moment so as to allow the needle to enter the same .and to come out therefrom without passing entirely through this sole;

6. The drive for the difierent above mentioned mechanism; and

7. The mechanism for supporting" the sole automatically producing the-feed thereof according to the curves shewn thereby as sewing is proceeding, as well as the drive PM for this mechanism; 1.--The frame-The same is constituted fiy .a fixed standard A, see Figure 1, at the upper part of which is maintained and can revolve 'in an intermittent manner a frame (5, shewn in detail in Figure 7 which, through its extensions (Z? (1 acts as a support, among others, to the shuttle-box f and to the arm a carrying the curved needle 0, which arm is pivoted at. a to the extension d. In this frame can used for supplying the curved needle a with thread. The frame (i is' driven, as hereinafter explained, so as to remain stationary while the needle (1 is making a stitch (positions of Figures 1 and 9) and so as torevolve about itself of-180 as soon as the sewing is finished (position of Figure 10), the frame then revolving at same time as the cam. I

This cam is driven by an independent driving mechanism and its shaft w which rotates in a continuous manner in the frame d, produces, on the one hand, the reciproeating movement of a slide or carriage 0 which is suitably connected with the needle (land with the pusher 70 (Figures 2 and '3) and, on the other hand, the continuous driving of a gear wheel 9 which causes the to rotate.

2. eedle mechanism-The curved nee: dle a is carried by the finger a pivoted at i a and provided'at-its end with'a toothed sector or quadrant a, gearing with the sector '6 of an arm I) (Figure 3) pivoted at b (Figures 2 a'nd\3) and the end I) of which is provided with an oval hole into which enters the pin 72 connected with the slide 0. As shewn 1n Figure 2, the arm a is guided in its alternative rotary motion by a fixed circular part a p'rovidedat' the end of the arm d (Figure In Figure 2, the needle (1 is shewn as bemg engaged in the shuttle- .box after having pierced the .sole S, the

, needle being guided, in its piercing motion,

through the part 6, shewn in section'Figure 6, carried by an arm connected with the standard A;

4 thread h is brought to the eye a of the needle 0, as shewn in Fi re'2, in passing round the tension 2', i t e fixed pulley h, the movable pulley h and the fixed pulley h". It will be seen that the pulley h is'proh pivoteda vided at the end of a take-up arm 3 at. h upon the framed and pro with 9. lug or roller 72. entering the groove h of a cam h ;.the shape of the groove issuch that,

at the required moment,rthe piilley h is able jaw 2' of the tension, so as to grip the thread and" to brake its-motion in a well known manner.

freely slide a cam h which iswhich is that of the axis or pin f 7 (Figure 2). The shuttle is driven by the pinion g keyed upon itsaxle and gearing with the wheel 9 the latter rotates in a contlnuous manner with the pin or axle w to the extension 10 of which it is keyed, Figure 7; the whole is arranged so that the shuttle-turns so as to loop the needle thread, the sa d shuttle making more than a half-turn in order to loop the needle-thread .and' this while the needle is returning from its maxi mum or outmost driving or piercing oint to its starting point, that is to say or a quarter of a revolution of the shaft '11).

. To this purpose, the pinion g has a radius corresponding .to half that of pinion 9 so that to every half-turn of the pinion g corresponds a full revolution of the pinion g and consequently of the shuttle, which allows the said shuttle to loop the thread which is supplied from the needle (1. It will be observed that the wheel 9 will revolve about itself only when the frame d andits extensions d", d? remain stationary and that v on the contrary, the said wheel 9, and consequently .the'shaft of the shuttle, will not revolye about itself when the frame d ropassing entirely through the said sole, it isnecessary to bend or how the sole as shewn in Figure 2. This is the purpose of pusher i This pusher is constituted by a rod -ended by a fork which is shown in detail view in Figure 5, the arms 10 and*k of this fork being provided with holes allowing the passage of the needle a. The rod k slides vertically iii a guide 7' carried by the exten- S1011 (Z of frame Its upper end carries a lug k engaging agroove'lc with inclined end, of the slide a so that at the end of the stroke of the slide 0, (Figure 9), the pusher is lifted by the inclined part which forms a ,s ope.

ml operation-The drive of the mechais the carriage or slide 0 which slides in a gulde d. This carriage or slide is carried (Z bice for the meckanimns isms for producing the sewing or stitching which have ust been described can .be oh-- tamed by meansof a singleinember which along in its reciprocating motion by a crank pin 1;, shewn in Figure 7, and in horizontal section Figure 8, continuously 1 revolv g with the shaft w.

To every halfspends a rectilin carriage c, as statlonary.

ion bf the slide or long as the frame d remains The saidslide c in produces, abs- 3 emma the one hand, the driving ofthe needle into the sole orr its removal therefrom through an armb which'is thereby caused to rotate about the point?) 'at every reciprocating movement, and, on the other hand, the ver tical displacement of groove k The whole of the mechanism is so arranged that the operation of themachine wil ake place in three strokes viz:

1st stroke-Lowering of the usher and of the pusher k by means simultaneous driving. of the nee e into the The two wheels u and it are keyed to the same shaft m which (revolves in a continuous 'manneriand is operated through bevel wheels t and from the shaft m This shaft m can be driven in any suitable man- .ner for example by means a fly-wheel m Figure 1.

With the wheel at gears the wheel v" which is keyed to the shaft to connected with the cam h I With the wheel u-.gears the wheel '0 -keyed to the sleeve 0: connected with the frame (5, said sleeve being free to rotate with reference to shaft w.

.It will be seen that the framed is car:

ried or drlven quite independently 'of the -cam k Referring to Figure 4, it will be observed that the wheel v carries-a number of teeth which equal to 2/3 of the number of teeth of wheel u; in the example which is represented pinion ahas 14 teeth and pinion u, 21 teeth.. In other words, the ratio of tothree? teeth.Between the .p'inions v andu is of two Furthermore, the wheelu is smooth on part of its periphery and carries a toothed sector u (comprising 6 teethfor instance).

Finally, the pinion '0 carries two toothed sectors having the same number of teeth as the sector ufl'that is to'say six teeth, one of the teeth 42? of each; sector being, so

7 shaped as to allowthe free ,revolutionof the smooth portion at? Accordingly; it will be mama that if the shaft mrotates according to a uni- ,"form-motion, at every full revolution of the shaft 012/ (and-consequently at every full revolution .of the pinionlu and ofthe wheel 1B), the pinion/v and consequently the'shaft' vhieh carries of drives along the slide or' carriage turns, while pinion er (carrying along the frame 01) will only make half a turn.

.Such being the case, if we take for the start of the strokes or motions the moment when the needle 1; is at the top of its stroke -ready to be driven into thesole (Figures 1 and 2 referring to the end of the driving stroke of the needle), the operation will take place according to the three following strokes:i J 1st stroke. -The pinion 2) makes a 'first half-turnand pinion '0 remains stationary,

0) will make one and a halfc the slide 0 moves froln'the left to the right,

when looking at the figures, so as to come to its'outmost right position corresponding to the end of the driving of the needle, Figures 1 and 2, the frame dremaining .stationary. i 1

2nd stroke.-'-The pinion 1; makes its second half-turn and the pinion '0 remains stationary; the carriage or slide 0 comesback to its original position corresponding to Figure 9, position in which the needle has come out the sole, the frame (1 is always stationary.

3rd stroke-The pinion '0 makes its third half-turn and the pinion '0 driven along by the sector 20 makes also half a turn in carrying or driving along with it the whole of the cam 71 of the slide 0 and of the frame d; this whole rotates about itself through 180 as a unit, that is to say without any shifting of one of these parts with,

reference to the other. At theend of thisrevolution the machine occupies the osition which is shewn in. Figure 10 and t e cycle begins again. 1 2 Itis to be noticed that at the starting of the first stroke, that 'is to say when the needle has not yet entered the sole, the pusher k is liftedby the inclined groove of the slide 0 and that, before the needle is driven into the sole, the pusher is lowered under the action of said groove in order to finishcthe bending of the sole .9 over its lower pusher .l, the curved needle a .passing. through the holes k lc of the pusher k. The pusher remains in the. lowered position until about the end of the second stroke when it is lifted again The stitch being made, the feeding of the sole is then autohold the material that is to say the sole dur- I I ing the working comprises: a pusher Z pressing the sole against the part is, this pusher Z belng carried by-,'a lever l which can pivotabout the point Z secured to the frame of the machine: w y I I .A rod l rwhichopenates the lever l and I which is v-linked on the one hand, to said a 55 lever 1" which can be adjusted at lever Z and ion the other hand, to a rod 1* which latter can pivot about the pivot Z and is driven, through the medium of a rod 1 by a roller Z rolling over a cam Z carried from the shaft m Furthermore, the mechanism which causes the material, that is to say the sole, to move I forwards during working comprises follow- 1 i? ing parts: v v 1 Two claws; an upper claw '11. carried by a rod a connected with a lever n A lower claw 0 carried by a rod 0 hinged toalever 0 which can pivot about Z and is operated by a rod 0 a roller 0* and a cam 0 the latter being carried by the shaft m moreover these two claws can pivot, through suitable means, in a substantially horizontal plane; r

A part n capable of sliding alon the rod o forming one part with n and riven by the lever n driven by a rod 72; a roller n and a cam n carried from the shaft W1);

A part 12 carrying the lever n which can able points, of links suchas o A rod p cont olling the motion of the part p, said rod 11 b 'ng secured to the part p at right angle wit theipart p so as to ad? 40 just the amplitude of oscillation and being moved by a roller p and a cam secured to the shaft m A rod n carried by the claw n normal to the plane of Figure 1; C

An are q the ends of which bear against the'said rod n and which is carried by a lever g? pivoting about point 9 A spring 9 returning to a suitable position the lever g driven by the rod 10 one or several links can A finger Z common to the parts I and 0 which is capable of being lowered to carry along the parts I and 0 so as to release the work; this result is attained by vmeans of a an angle 'with reference to the finger Z in virtue of the groove r in which the finger Z can slide and operated by the lever 1' which can pivot about point r and linked at r w th 1'. The

lever r can pivot. about the point 0 connected with the frame; in order to allow the shifting of point 1' the latter is carried by a screw connected at r withthe frame of the machine, said screw allowing to adjust the height of point r.

the amplitude of which is very be provided if necessary;v

The part gfrelievin the part n through the spring 9 allows t e claws to rotate i'and to such a curve that-the needle Will -always be driven in at right angle to thetangent of the sole curve, 9 is notin contact with the part a it will while at this moment the part i 1 to cause the sole to move forwards according come again in contact with the latter when the claws will have caused the work to move forwards. I I

General operation of the Let us suppose that a stitch has just been made, the sewing or stitching mechanism be ing then in a position between that of Figures 1 and 9 (position corresponding to the moment when the needle comes out of the sole but is not yet at the end of its stroke), theoclaws n and 0 move apart the one from the other, the part-p DSC11- lates, thereby bringing the claws n and o a little backwards above and under the sole at a distance corresponding to thespa ce between two successive stitches; the part g releases the said claws which pivot under the action of the spring n attached at n to the part a until when the front vertical portion of the claw n bears against theperiphery of the sole, said claws pivoting under the action of the spring'n requires it in a substantially horizontal plane; the claws" press again against the sole,

the part Z is lowered and the pusher k rises again (position of Figure 9), the part 2 oscillates in a reverse direction, thereby causing the sole to advance;' the are q m'oves nearer and directs the claws in such manner that the needle can stitch the sole normally, 'to the tangent to the curve corresponding to the outline of the sole.

This reverse oscillation ofthe part p takes place while the stitching mechanism rotates .through 180 (third stroke as above described and comes to the position shewn in Figure 10, the needle being ready to make a new stitch, the parts Z and the pusher'k then come near. one another and .cause the material or the sole to assume the convenient shape. 7

The needl-eaa is driven into the sole and loops the thread of the shuttle f, as shewn in Figure 11, then comes back rearwa'rdly and if the outline of the sole' the series of operations are again performed r as described.

Modification in the construction of the machine. I

According to a,,m'odified form of constriic- .-tion of the machinewhich is represented in.

Figures 12, 13 and 1'4, the mechanism is simplified, the movements of the needle a and of the pusher is being no longer obtained through the slide or carriage 0, but

merely by means of two suitable grooves which are independent from the cam h.

With reference to the movement of the needle, the arm a is connected with a con-- necting rod b which can only slide verti- Furthermore, the pusher is, which onlv i slides vertically, is operated directly by the groove H of the cam k which is entered by the end k of the pusher is.

As in the previous case, the feeding of the thread is insured by the lever h pivoting at h, the lug or roller 72, of which enters the groove k of the cam k The operation of the said stitching mechanism thus modified is the same as the one previously described and takes place in three strokes 0 1st stroke.Lowe1-ing of the pusher k, t

'needleto enter and leave on'the same side,

then driving of the needle as into the sole, Figure 12. 2nd stroke.Releasing of the needle from the sole, looping of the shuttle and lifting of the pusher 70, Figure 13.

3rd stroke.-Revolution through 180 of the whole of the frame d and of the cam. k which has 'for eifect to bring the needle into the position shewn in Figure 14, ready for making a new stitch in a reverse direction to that of the stitch which has just been made. 1

Whatever the mode of construction of the machine may be, it will-be observed that the thread does not pass entirely through the sole and that tli e 'stitch cannot go off or unthread when dray-ring upon the thread. Accordingly, this machine is particularly adapt-- ed to be used for shoe-making work; but it can of course be used in connection with all sorts of works in which the advantages resulting from its special stitch can be utilized, for example for making carpets, linen Ior underwear, for stitching bags, and particularly for making embroidery in which the use of this machine allows to obtain a stitch like the so called cross stitch, the part being conical or tapered and its variable lifting between the arms of the pusher allowing even to obtain a stitch of variable width,

according as the distortion or bending im- I arted to the sole by said part Z is more or ess reat.

" 0 course, the invention is in I no way limited to the forms of construction and arrangement which have been more specially described, as it includes, on the contrary,"

every modification and particularly those in which the feeding or carrying along of the material is efiected horizontally or verti call either'through claws, or through the nee e", or through rollers, and those in which the shuttle ivould be a rotary or vibrating one, inwhich the needlecwould be. consti-- tuted by an ordinary needle or one with hook and with loop maker and thelike.

Finally, it will be understood th t alterations can be made in'the devices w ich have just been described without departing from the principle of the invention.

What I'claim is: v

1. A sewing machine comprising a needle, means for operating the needle, means for supplying the needle with sewhlgrthread a shuttle, means adapted to op erate the shuttle, means for distorting a sole to allow the needle to enter and leavelthe same-side,

andmeans for causing thneedle and the shuttle to simultaneously rotate through 180 I after every stitch.

' 2. ,A sewing machine, comprising a needle,

means for operating the needle, means for supplying the needle with sewi'ng' thread, a shuttle, means adapted to operate the shuttle, a pusher for distorting sgles to allow the 3. A sewing machine, comprising a needle,

a support for maintaining the needle while allowing the same to effect its reciprocating motions, means operatlng the needle, means for supplying thread to the needle, a shuttle rotatably mounted in said support, means for causing the shuttle to rotate, a pusher distorting a sole to allow the needle to enter and leave on the same side, means operating the pusher to cause the needle, the shuttle and the pusher to rotate through 180 after every stitch. l

4. A sewing machine comprising a needle, means for supplying thread to the needle, a support for maintaining the needle while allowing the same to effect its reciprocating imotions means for producing the motions of the needle, a shuttle rotatably mountefl in said suppoigt, means for rotating the shuttle, a pusher for distorting} sole, to allow the needle to enter and leave on the same-side, co-operating means for controlling at ,the same time tliemotions of the pusher, of the needle and of the, thread supplying device,

and means for causing the needle, theshuttle same side, cam mechanism for simultane-.

ously' controlling'the motions of the pusher, the needle, and the thread supplying device,

and means for causing the needle, the shuttle and the pusher" to rotate through 180 after every stitch.

6. A sewing machine comprising a needle, a sup ort for. maintaining the needle while allowing the same to effect its reciprocating motions,a lever for feeding thread to the needle, a shuttle rotatably mounted in said support, a cam' for, controlling at the same time the motions of the pusher, of the needle andmf the thread feeding lever, a bevel gear wheel driven by said cam, another bevel garwheelmeshing with the first one in the ratio of one to two-and keyed to the shuttle axle, a pusher for distorting the sole so as to allow theneedle ,to enter and leave on the "same side, and means for causing the needle, the shuttle and the pusher to revolve.

throu h 180 after every stitch.

7. sewing machine comprising a needle, asupport for maintaining the needle while allowing the same to efiect its reciprocating motions, a rotatable shuttle mounted in said support, a cam with three grooves for shiftwheel driven by the cam, anoth ing the pusher, for shifting the needle and supplying the same with thread, a bevel gear bevel gear wheel meshing with the first one in the ratio of one to two and keyed to the shuttle axis to rotate it, a pusher for distorting the sole of a shoe to allow the needle toflenter and i leave on the same side,v means for causing the camto rotate in a-continuous manner, and'means for causing the rotation through 180 of the support for the needle and t e shuttle at the angular speed of the cam after every stitch to avoid relative displacement of the cam and of, the support during said.

rotation, and to. cause the rotation of the controlling at support wheel meshing with the first one and having a gearing ratlo of 3 to 2, and continuously driven, a double toothed sectorkeyed to the support for the needle and the shuttle, having the same'axis as the first gear, another toothed sector keyed to the axle of the second gear and continuously rotating to continuously drive the cam and rotate through 180 the support after every stitch.

9. A sewing machine comprising a needle, means {or operating the needle, means for supplying the nee le with sewing thread, a I shuttle, means to operate the shuttle, means for distorting the sole of a slipper so as to allow the needle to enter and leave on the same side, means for causing the needle and the shuttle to simultaneously rotate throughafter every stitch, means .for causing the work to move forward automatically and for carrying the same in such manner that the nee le will always present itself normally to the tangent to the curve correspending to the outline of the sole.

' 10. A sewing machine compr'ising'a needle,

a support for maintaining the needle while allowing thesame to eflect its reciprocating motions, a shuttle rotatably mountedin sald,

support, a device for supplying the needle with thread, a cam with 'three grooves for the sametime the motions of the needle, of the shuttle and of the device tor supplying'the needle with thread, a gear keyed to the cam axle, a second gear meshing'with the first gearing ratio of 3 to 2 and continuously driven, a double toothed sector keyed to the for the needle and the shuttle and having the same axis as the first gear, another toothed sector keyedto the axle of the second gear and revolving in a continuous manner to produce the, continuous driving of the cam and the revolution through 180 of the support after every stitch, and means for causing the work to move forward automatically and for carrying the same in such manner that the needle will always present hereto.

GABRIEL CASIMIR ROGER.

one andhaving a .itself normally to the tangent to the curve 

